Let's work through each part of the question step-by-step.
I. In each sentence circle the verbs and underline the nouns:
The cat eats his treat.
Nouns: The cat, treat
Verb: eats
Your mother finished early.
Nouns: mother
Verb: finished
The children were listening to the story.
Nouns: children, story
Verb: were listening
Dad climbed the stairs quickly.
Nouns: Dad, stairs
Verb: climbed
Mark and Erik walk to the park.
Nouns: Mark, Erik, park
Verb: walk
II. Underline the Adverbs:
He drives carefully.
Adverb: carefully
She finished the test quickly.
Adverb: quickly
He spoke loudly in the meeting.
Adverb: loudly
They worked hard.
Adverb: hard
She easily solved the puzzle.
Adverb: easily
III. Underline the Adjective in the following sentences:
Lotus is a beautiful flower.
Adjective: beautiful
The teacher told us an interesting story.
Adjective: interesting
Mumbai is a large city.
Adjective: large
The elephant has a long trunk.
Adjective: long
Ravi is an honest boy.
Adjective: honest
By following these steps, you can identify the nouns, verbs, adverbs, and adjectives in the sentences. Understanding these parts of speech can help in analyzing and constructing sentences effectively.